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Blood problems

Blood problems. 24. For the following indicate whether it is possible for the blood type to be created based on the couple's blood types. A + A = O?. A + AB = O?. O + B = AB?. AB + AB = A?.

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Blood problems

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  1. Blood problems

  2. 24. For the following indicate whether it is possible for the blood type to be created based on the couple's blood types

  3. A + A = O?

  4. A + AB = O?

  5. O + B = AB?

  6. AB + AB = A?

  7. 25. Determine the possible blood types that could be found in the children of a couple who are AB Rh- (AB Rh- Rh-) and O Rh+. (Trick) AB Rh-Rh-x OO Rh+__? Is it OO Rh+Rh+? Is it OO Rh+Rh-? Do both!

  8. AB Rh-Rh- x OO Rh+Rh+

  9. AB Rh-Rh- x OO Rh+Rh-

  10. Okay…. • So answer the question. What was that again? The possible blood types that the couple’s children are:

  11. 26. Determine the possible blood types of any children when a woman with type A blood whose parents were both AB Rh- marries a man who is type O Rh- and had a type B Rh+ child from a previous marriage. (Trick) Woman’s genotype?

  12. What about the man’s genotype? • What is he again? • O Rh- • That’s recessive for both traits. There’s only one genotype possible: • OO Rh-Rh-

  13. Umm…what was the question? (What could the blood type could their children have?) Dad Mom

  14. Sex-linked Traits

  15. Colour blindness

  16. 31. Determine the possiblity of having a child who is colour blind if a colour blind woman marries a man who had a colour blind father. XbXb x __Y? Is it XBY? Is it XbY? Do both!

  17. XbXbx XBY

  18. XbXbx XbY

  19. …Just check the question already • 3 in 4.

  20. 32. Determine the possiblity of two colour blind people having a normal colour vision child. Why does that sound familiar? Oh yeah, we did that already. Answer: _________

  21. 33. Determine the possiblity of two parents who each had a colour blind mother of having a colour blind child. • Gotta find the genotype of the two parents first, • then I can see what their offspring are like. • They have a colour blind mother, but what about • the father? There are two possibililties.

  22. Woman: Mother and father both colour blind Mother colour blind, father normal 50% of the girls are colour blind

  23. Man: Mother and father both colour blind Mother colour blind, father normal 100% of the boys are colour blind

  24. The answer is that there is a 50% chance that these parents could have a colour blind child.

  25. Gene Frequency • Refers to how common a gene is in a population • Take a look at the table in your handout

  26. http://anthro.palomar.edu/vary/vary_3.htm

  27. http://anthro.palomar.edu/vary/vary_3.htm

  28. http://anthro.palomar.edu/vary/vary_3.htm

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